function [p_s,Residual_s] = GetResidual(t,s)
%UNTITLED2 此处显示有关此函数的摘要
%   此处显示详细说明
p_s = polyfit(t,s,2);
s_fit = p_s(1)*t.^2+p_s(2)*t+p_s(3);
Residual_s = s-s_fit;
end

